Host selection behavior of the host-feeding parasitoid Necremnus tutae on Tuta absoluta
- 18 May 2022
- journal article
- research article
- Published by Schweizerbart in Entomologia Generalis
- Vol. 42 (3), 445-456
- https://doi.org/10.1127/entomologia/2021/1246
Abstract
Host selection behavior is a key aspect of parasitoid foraging. Elucidating the host selection behaviors of a hymenopteran parasitoid on different hosts can clarify the interactions between the parasitoid and its hosts and further promote the development of biological control strategies utilizing this parasitoid. In the current study, we investigated the host-selection behavior of a predominant host-feeding parasitoid, Necremnus tutae Ribes & Bernardo (Hymenoptera: Eulophidae), on different instars of Tuta absoluta (Meyrick) larvae. We identified and described four host-selection behaviors of N. tutae: host feeding, oviposition, host killing and rejection. Ovipositor insertion was divided into three behavioral elements: ovipositor stabbing, ovipositor stirring and egg laying. This behavioral pattern facilitated the quick distinction of host-selection behaviors in a host-feeding parasitoid. Furthermore, we found that N. tutae directly fed on hosts of all instars but preferred 1(st)-2(nd)-instar hosts for feeding and 3(rd)-instar hosts for laying eggs. The duration of both host feeding and oviposition increased with larval host age. Further analysis revealed that the duration and frequency of two main behavioral elements of host-feeding behavior (ovipositor stirring and feeding on the host) also increased with larval host age. Understanding these basic behavioral traits is fundamental for developing parasite-rearing schedules and glasshouse introduction methods.Keywords
This publication has 30 references indexed in Scilit:
- Host instar suitability in two invasive whiteflies for the naturally occurring parasitoid Eretmocerus hayati in ChinaJournal of Pest Science, 2014
- Biology of two key Palaearctic larval ectoparasitoids when parasitizing the invasive pest Tuta absolutaJournal of Pest Science, 2014
- Natural enemies of the South American moth, Tuta absoluta, in Europe, North Africa and Middle East, and their potential use in pest control strategiesJournal of Pest Science, 2013
- The invasive South American tomato pinworm, Tuta absoluta, continues to spread in Afro-Eurasia and beyond: the new threat to tomato world productionJournal of Pest Science, 2011
- Lifetime gains and patterns of accumulation and mobilization of nutrients in females of the synovigenic parasitoid, Diglyphus isaea Walker (Hymenoptera: Eulophidae), as a function of dietJournal of Insect Physiology, 2011
- Biological invasion of European tomato crops by Tuta absoluta: ecology, geographic expansion and prospects for biological controlJournal of Pest Science, 2010
- Hyperparasitism behaviour of the autoparasitoid Encarsia tricolor on two secondary host speciesBioControl, 2008
- Host-stage selection and oviposition behaviour of Psyllaephagus pistaciae, parasitoid of the common pistachio psylla Agonoscena pistaciaeBiological Control, 2006
- Host and food searching in a parasitic wasp Venturia canescens: a trade-off between current and future reproduction?Animal Behaviour, 2005
- Selection of Bemisia nymphal stages for oviposition or feeding, and host-handling times of arrhenotokous and thelytokous Eretmocerus mundus and arrhenotokous E. eremicusBioControl, 2005